| All legume plants do this, so be sure to watch your peas and beans for signs of heliotropism. |
| Just as flowers turn their heads towards the sun, so too does that which has been turned, by virtue of a secret kind of heliotropism, towards the sun which is dawning in the sky of history. |
| The heliotropism itself is an adaptation for survival, the plant maximizing sunlight. |
| We notice also the reverse phenomenon, namely, that chemical changes produced in the animal destroy its heliotropism. |
| We have mentioned the newly hatched larv of the barnacle in connection with heliotropism. |
| The adaptive significance of solar tracking in snow buttercups is mediated through the impact of flower heliotropism on paternal and maternal floral environments. |
